LR catalogue doesn't open

[Ulrike Stein]

Yesterday I closed lightroom, got the question if I wanted to quit, I said yes. Today I'm trying to open LR and only get a message that the catalogue I'm trying to open is already open in an other session, that I shoul close that session. But I didn´t open it anywhere else. If I try to open the older version, I get the message that there is a an updated version of my catalogue, that I should open that. If I try it, I again get the first message and there is no way that LR will open.

[Brenden Hedges]

Have you tried uninstalling it then installing it and then opening it?

[Ulrike Stein]

Hi, you mean unistalling the whole LR? I just installed the actualization

[Ulrike Stein]

https://helpx.adobe.com/es/lightroom-classic/kb/lightroom-error-catalog-cannot-be-opened-lrcat-lock....

there is the way

[JP Hess]

It would seem that there is a lock file that didn't get deleted in the folder where your catalog is located. Using your system file browser, open the folder that contains your catalog and look for a folder with the lock extension. If that file exists then delete it, and then Lightroom should function normally.